Levesque (Ed.), Encyclopedia of Adolescence (2nd ed., pp. 1–14). New York: Springer.10 Brody, N. (2018). Opting out of social media: online communication attitudes mediate the relationship between personality factors and Facebook non‐use. Southern Communication Journal, 83(2), 75–88. https://doi.org/10.1080/1041794X.2017.1413415
11 Brown, L.H., Silvia, P.J., Myin‐Germeys, I., & Kwapil, T.R. (2007). When the need to belong goes wrong: the expression of social anhedonia and social anxiety in daily life. Psychological Science, 18, 778–782.
12 Burger, J.M. (1995). Individual differences in preference for solitude. Journal of Research in Personality, 29, 85–108.
13 Buttrick, N., Choi, H., Wilson, T.D., Oishi, S., Boker, S.M., Gilbert, D.T., Alper, S., Aveyard, M., Cheong, W., Čolić, M.V., Dalgar, I., Doğulu, C., Karabati, S., Kim, E., Knežević, G., Komiya, A., Laclé, C.O., Ambrosio Lage, C., Lazarević, L.B., … Wilks, D.C. (2019). Cross‐cultural consistency and relativity in the enjoyment of thinking versus doing. Journal of Personality and Social Psychology, 117, e71–e83.
14 Cacioppo, J.T. & Patrick, B. (2008). Loneliness: Human Nature and the Need for Social Connection. New York: W.W. Norton & Company.
15 Chua, S.N. & Koestner, R. (2008). A self‐determination theory perspective on the role of autonomy in solitary behavior. The Journal of Social Psychology, 148, 645–648.
16 Chen, X. (2019). Culture and shyness in childhood and adolescence. New Ideas in Psychology, 53, 58–66.
17 Clauss, J.A. & Blackford, J.U. (2012). Behavioral inhibition and risk for developing social anxiety disorder: a meta‐analytic study. Journal of the American Academy of Child & Adolescent Psychiatry, 51, 1066–1075.
18 Coplan, R.J. & Bowker, J.C. (2014). The Handbook of Solitude: Psychological Perspectives on Social Isolation, Social Withdrawal, and Being Alone. New York: Wiley‐Blackwell.
19 Coplan, R.J. & Bowker, J. (2017). Should we be left alone? Psychological perspectives on the implications of seeking solitude. In I. Bergmann & S. Hippler (Eds.), Cultures of Solitude: Loneliness–Limitation–Liberation (pp. 287–302). Bern: Peter Lang.
20 Coplan, R.J., Hipson, W.E., Archbell, K., Ooi, L.L., Baldwin, D., & Bowker, J.C. (2019). Seeking more solitude: conceptualization, assessment, and implications of aloneliness. Personality and Individual Differences, 148, 17–26.
21 Coplan, R.J., Ooi, L.L., & Baldwin, D. (2019). Does it matter when we want to be alone? Exploring developmental timing effects in the implications of unsociability. New Ideas in Psychology, 53, 47–57.
22 Coplan, R.J., Ooi, L.L., & Nocita, G. (2015). When one is company and two is a crowd: why some children prefer solitude. Child Development Perspectives, 9, 133–137.
23 Coplan, R.J., Zelenski, J., & Bowker, J.C. (2018). Well enough alone? The costs and benefits of solitude. In J.E. Maddux (Ed.), Subjective Well‐Being and Life Satisfaction (pp. 129–147). New York: Routledge.
24 Coplan, R.J., Prakash, K., O'Neil, K., & Armer, M. (2004). Do you "want" to play? distinguishing between conflicted shyness and social disinterest in early childhood. Developmental Psychology, 40, 244–258.
25 Coplan, R.J., Rose‐Krasnor, L., Weeks, M., Kingsbury, A., Kingsbury, M., & Bullock, A. (2013). Alone is a crowd: social motivations, social withdrawal, and socio‐emotional functioning in later childhood. Developmental Psychology, 49, 861–875.
26 Coplan, R.J. & Weeks, M. (2010). Unsociability in middle childhood: conceptualization, assessment, and associations with socio‐emotional functioning. Merrill‐Palmer Quarterly, 56, 105–130.
27 Csikszentmihalyi, M. (1996) Creativity: Flow and the Psychology of Discovery and Invention. New York: Harper Collins.
28 Deci, E.L. & Ryan, R.M. (2000). The “what” and the “why” of goal pursuits: human needs and the self‐determination of behavior. Psychological Inquiry, 11, 227–268.
29 Epley, N. & Schroeder, J. (2014). Mistakenly seeking solitude. Journal of Experimental Psychology: General, 143, 1980–1999.
30 Eysenck, H.J. & Eysenck, M.W. (1985). Personality and Individual Differences: A Natural Science Approach. New York: Plenum Press.
31 Erzen, E. & Çikrikci, Ö. (2018). The effect of loneliness on depression: a meta‐analysis. International Journal of Social Psychiatry, 64, 427–435.
32 Freud, S. (1930/1961). Civilization and its discontents. In J. Strachey (Ed. and Trans.), The Standard Edition of the Complete Psychological Works of Sigmund Freud (Vol. 21, pp. 57–145). London: Hogarth Press. (Original work published 1930)
33 Galanaki, E.P. (2015). Solitude as a state of positive aloneness in childhood and adolescence. In C.J. Kowalski, J.P. Cangemi, & A. Rokach (Eds.), Loneliness in Life: Education, Business, and Society. (pp. 168–190). Dubuque, IA: McGraw Hill.
34 Goossens, L. (2014). Affinity for aloneness and preference for solitude in childhood: linking two research traditions. In R.J. Coplan, & J.C. Bowker (Eds.), The Handbook of Solitude: Psychological Perspectives on Social Isolation, Social Withdrawal, and Being Alone (pp. 150–166). New York: Wiley‐Blackwell.
35 Hamilton, W.D. (1964). The evolution of social behaviour II. Journal of Theoretical Biology, 7, 17–52.
36 Harlow, H., (1958). The nature of love. American Psychologist, 13, 573–685.
37 Hart, C.H., Yang, C., Nelson, N.J., Robinson, C.C., Olsen, J.A., Nelson, D.A., Porter, C.L., Jin, S., Olsen, S.F., & Wu, P. (2000). Peer acceptance in early childhood and subtypes of socially withdrawn behavior in China, Russia and the United States. International Journal of Behavioral Development, 24, 73–81.
38 Hay, D. & Morisey, A. (1978). Reports of ecstatic, paranormal, or religious experience in Great Britain and the United States – a comparison of trends. Journal for the Scientific Study of Religion, 17, 255–268.
39 Hollis, C., Livingstone, S., & Sonuga‐Barke, E. (2020). Editorial: The role of digital technology in children and young people's mental health – a triple‐edged sword? Journal of Child Psychology and Psychiatry, 61, 837–841.
40 Holt‐Lunstad, J., Smith, T.B., Baker, M., Harris, T., & Stephenson, D. (2015). Loneliness and social isolation as risk factors for mortality a meta‐analytic review. Perspectives on Psychological Science, 10, 227–237.
41 Horney, K. (1945). Our Inner Conflicts: A Constructive Theory of Neurosis. New York: Norton.
42 Kagan, D.M. (1990). Ways of evaluating teaching cognition: inferences concerning the Goldilocks Principle. Review of Educational Research, 60, 419–469.
43 Kidd, C., Piantadosi, S.T., & Aslin, R.N. (2014). The Goldilocks Effect in infant auditory attention. Child Development, 85, 1795–1804.
44 Kim, H., Schimmack, U., Oishi, S., & Tsutsui, Y. (2018). Extraversion and life satisfaction: a cross‐cultural examination of student and nationally representative samples. Journal of Personality, 86, 604–618.
45 Kim, J‐H. & Lee, J.R. (2011). The Facebook paths to happiness: effects of the number of Facebook friends and self‐presentation on subjective well‐being. Cyberpsychology, Behavior, and Social Networking,
